Question
Download Solution PDFरीना एक निश्चित कीमत पर पेन बेचकर 20% का लाभ कमाती है। यदि वह प्रत्येक पेन पर ₹5 अधिक लेती है, तो उसे 40% का लाभ होगा। एक पेन का प्रारंभिक विक्रय मूल्य कितना था?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
लाभ प्रतिशत 1 = 20%
लाभ प्रतिशत 2 = 40%
विक्रय मूल्य में वृद्धि = ₹5
प्रयुक्त सूत्र:
विक्रय मूल्य (SP) = क्रय मूल्य (CP) + लाभ
लाभ = (लाभ प्रतिशत × CP) / 100
गणना:
मान लीजिए प्रारंभिक क्रय मूल्य (CP) ₹x है।
प्रारंभिक विक्रय मूल्य (SP1) = CP + लाभ
SP1 के लिए लाभ = (CP का 20%) = (20/100) × x
SP1 = x + (20/100) × x
SP1 = x + 0.2x
SP1 = 1.2x
नया विक्रय मूल्य (SP2) = SP1 + ₹5
SP2 = 1.2x + 5
SP2 के लिए लाभ = (CP का 40%) = (40/100) × x
SP2 = x + (40/100) × x
SP2 = x + 0.4x
SP2 = 1.4x
दिया गया है SP2 = 1.2x + 5
⇒ 1.4x = 1.2x + 5
⇒ 1.4x - 1.2x = 5
⇒ 0.2x = 5
⇒ x = 5 / 0.2
⇒ x = 25
प्रारंभिक विक्रय मूल्य (SP1) = 1.2x
SP1 = 1.2 × 25
SP1 = 30
एक पेन का प्रारंभिक विक्रय मूल्य ₹30 था।
Last updated on Jul 15, 2025
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